package demo2;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sr=new Scanner(System.in);
        while(sr.hasNext()){
            int x=sr.nextInt();
            sum(x,sr);
        }
    }
    public static void sum(int x,Scanner sr){
        int y=sr.nextInt();
        System.out.println(x+y);
    }
}
